S-8211D Series S-8211D Series protection single-cell lithium-ion

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S-8211D Series S-8211D Series protection single-cell lithium-ion

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BATTERY PROTECTION 1-CELL PACK
S-8211D Series
S-8211D Series protection single-cell lithium-ion lithium-polymer rechargeable batteries include highaccuracy voltage detectors delay circuits. These suitable protecting single-cell rechargeable lithium-ion lithium-polymer battery packs from overcharge, overdischarge, overcurrent.
Features
High-accuracy voltage detection circuit Overcharge detection voltage Accuracy (+25 Accuracy Overcharge release voltage Accuracy Overdischarge detection voltage steps) Accuracy Accuracy ±100 Overdischarge release voltage Discharge overcurrent detection voltage 0.05 0.30 steps) Accuracy Load short-circuiting detection voltage (fixed) Accuracy ±200 Detection delay times generated internal circuit (external capacitors unnecessary). Accuracy ±20% High-withstanding-voltage device used charger connection pins Absolute maximum rating battery charge function available unavailable selectable. Shutdown function selectable. Wide operating temperature range current consumption Operation mode typ., max. (+25 Power-down mode max. (+25 Small package: SOT-23-5, SNT-6A Lead-free product steps)
Overcharge release voltage Overcharge detection voltage Overcharge hysteresis voltage (Overcharge hysteresis voltage selected from range steps.) Overdischarge release voltage Overdischarge detection voltage Overdischarge hysteresis voltage (Overdischarge hysteresis voltage selected from range steps.)
Applications
Lithium-ion rechargeable battery packs Lithium-polymer rechargeable battery packs
Packages
Package Name SOT-23-5 SNT-6A Drawing Code Package MP005-A PG006-A Tape MP005-A PG006-A Reel MP005-A PG006-A Land PG006-A
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8211D Series Block Diagram
Output control circuit battery charge circuit battery charge inhibition circuit Oscillator control circuit
Divider control circuit
Charger detection circuit RVMD Discharge overcurrent detection comparator Overcharge detection comparator
RVMS Load short-circuiting detection comparator Overdischarge detection comparator
Remark diodes shown figure parasitic diodes. Figure
Seiko Instruments Inc.
Rev.4.5_00 Product Name Structure
Product Name
S-8211D xxxx
BATTERY PROTECTION 1-CELL PACK S-8211D Series
Package name (abbreviation) packing specifications M5T1 SOT-23-5, Tape I6T1 SNT-6A, Tape Serial code Sequentially from Refer taping specifications. Refer Product Name List".
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8211D Series
Product Name List
SOT-23-5 Table Overcharge Detection Voltage 4.250 4.280 4.275 4.325 4.280 4.280 4.280 4.275 Overcharge Over-discharge Over-discharge Release Detection Release Voltage Voltage Voltage 4.050 4.180 4.175 4.075 4.080 4.080 4.080 4.075 2.60 2.50 2.30 2.50 3.00 2.30 2.80 2.50 2.90 2.70 2.40 2.90 3.00 2.30 2.80 2.90 Discharge Overcurrent Detection Voltage VDIOV 0.12 0.19 0.10 0.15 0.08 0.13 0.10 0.15 Battery Charge Function Unavailable Unavailable Available Unavailable Available Unavailable Available Unavailable
Product Name Item
Delay Time Combination*1
Shutdown Function
S-8211DAB-M5T1G S-8211DAE-M5T1G S-8211DAH-M5T1G S-8211DAI-M5T1G S-8211DAJ-M5T1G S-8211DAK-M5T1G S-8211DAL-M5T1G S-8211DAM-M5T1G
Refer Table about details delay time combinations (1). Remark Please contact sales office products with detection voltage value other than those specified above. SNT-6A Table Overcharge Detection Voltage 4.250 4.280 4.250 4.280 Overcharge Over-discharge Over-discharge Release Detection Release Voltage Voltage Voltage 4.050 4.180 4.050 4.080 2.60 2.50 2.40 2.30 2.90 2.70 2.90 2.30 Discharge Overcurrent Detection Voltage VDIOV 0.12 0.19 0.10 0.08 Battery Charge Function Unavailable Unavailable Available Available Delay Time Combination*1 Shutdown Function
Product Name Item
S-8211DAB-I6T1G S-8211DAE-I6T1G S-8211DAF-I6T1G S-8211DAG-I6T1G
Refer Table about details delay time combinations (2). Remark Please contact sales office products with detection voltage value other than those specified above.
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8211D Series
Table Delay Time Combination Remark Overcharge Detection Delay Time Overdischarge Detection Delay Time Discharge Overcurrent Detection Delay Time tDIOV Load Short-circuiting Detection Delay Time tSHORT
delay times changed within range listed Table details, please contact sales office.
Table Delay Time Overcharge detection delay time Overdischarge detection delay time Discharge overcurrent detection delay time Load short-circuiting detection delay time Remark Symbol tDIOV tSHORT Selection Range Remark Select value from left. Select value from left. Select value from left. Select value from left.
value surrounded bold lines delay time standard products.
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8211D Series Configurations
SOT-23-5 view
Table Symbol
Figure
Description Voltage detection between (Overcurrent charger detection pin) Connection positive power supply input Connection negative power supply input Connection discharge control gate (CMOS output) Connection charge control gate (CMOS output)
SNT-6A view
Symbol NC*1
Table Description connection Connection charge control gate (CMOS output) Connection discharge control gate (CMOS output) Connection negative power supply input Connection positive power supply input Voltage detection between (Overcurrent charger detection pin) electrically open. connected VSS.
Figure
Seiko Instruments Inc.
Rev.4.5_00 Absolute Maximum Ratings
BATTERY PROTECTION 1-CELL PACK S-8211D Series
Table unless otherwise specified) Item Input voltage between input voltage output voltage output voltage Power dissipation SOT-23-5 Symbol Topr Applied Absolute Maximum Ratings (When mounted board) 600*1 400*1 Unit
SNT-6A Operating ambient temperature
Storage temperature Tstg When mounted board [Mounted board] Board size: 114.3 76.2 t1.6 Board name: JEDEC STANDARD51-7 Caution
absolute maximum ratings rated values exceeding which product could suffer physical damage. These values must therefore exceeded under conditions.
Power Dissipation [mW]
SOT-23-5
SNT-6A
Ambient Temperature (Ta) [°C]
Figure Power Dissipation Package (When Mounted Board)
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8211D Series Electrical Characteristics
Except Detection Delay Time
Table
Item DETECTION VOLTAGE Overcharge detection voltage
Symbol
Condition
unless otherwise specified) Test Test Min. Typ. Max. Unit CondiCircuit tion -0.025 -0.03 -0.05 -0.05 -0.05 -0.10 -0.05 +0.025 +0.03 +0.05 +0.025 +0.05 +0.10 +0.05
3.90 4.40 Adjustable 3.90 4.40 Adjustable, 3.80 4.40 Adjustable
Overcharge release voltage
Overdischarge detection voltage
2.00 3.00 Adjustable
Overdischarge release voltage
2.00 3.40 Adjustable
Discharge overcurrent detection voltage Load short-circuiting detection voltage*2 Charger detection voltage BATTERY CHARGE FUNCTION battery charge starting charger voltage INTERNAL RESISTANCE Resistance between Resistance between [INPUT VOLTAGE] Operating voltage between Operating voltage between
VDIOV VSHORT VCHA V0CHA
0.05 0.30 Adjustable battery charging function "available" battery charging function "unavailable" =VVM
VDIOV VDIOV VDIOV -0.015 +0.015 0.30 -1.0 0.50 -0.7 0.70 -0.4
battery charge inhibition battery voltage V0INH RVMD RVMS VDSOP1 VDSOP2
INPUT CURRENT (Shutdown Function Yes) IOPE Current consumption during operation Current consumption power-down IPDN INPUT CURRENT (Shutdown Function IOPE Current consumption during operation Current consumption during overdischarge OUTPUT RESISTANCE resistance resistance resistance resistance RCOH RCOL RDOH RDOL IOPED
Since products screened high temperature, specification this temperature range guaranteed design, tested production. conditions, Load short-circuiting detection voltage (VSHORT) higher Discharge overcurrent detection voltage (VDIOV).
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8211D Series
Except Detection Delay Time (-40 +85°C
Table (-40 +85°C Item DETECTION VOLTAGE Overcharge detection voltage 3.90 4.40 Adjustable 0.060 0.08 0.08 0.11 0.15 0.11 0.040 0.065 0.04 0.13 0.19 0.13 Symbol Condition Min. Typ.
unless otherwise specified) Test Test Max. Unit CondiCircuit tion
Overcharge release voltage
3.80 4.40 Adjustable
Overdischarge detection voltage
2.00 3.00 Adjustable
Overdischarge release voltage
2.00 3.40 Adjustable
Discharge overcurrent detection voltage Load short-circuiting detection voltage*2 Charger detection voltage BATTERY CHARGE FUNCTION battery charge starting charger voltage battery charge inhibition battery voltage INTERNAL RESISTANCE Resistance between Resistance between INPUT VOLTAGE
VDIOV VSHORT VCHA V0CHA V0INH RVMD RVMS
0.05 0.30 Adjustable battery charging function "available" battery charging function "unavailable"
VDIOV VDIOV VDIOV 0.021 0.024 0.16 -1.2 0.50 -0.7 0.84 -0.2 1310
Operating voltage between VDSOP1 Operating voltage between VDSOP2 INPUT CURRENT (Shutdown Function Yes) IOPE Current consumption during operation Current consumption power-down IPDN INPUT CURRENT (Shutdown Function IOPE Current consumption during operation Current consumption during overdischarge OUTPUT RESISTANCE resistance resistance resistance resistance RCOH RCOL RDOH RDOL IOPED
Since products screened high temperature, specification this temperature range guaranteed design, tested production. conditions, Load short-circuiting detection voltage (VSHORT) higher Discharge overcurrent detection voltage (VDIOV).
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8211D Series
Detection Delay Time
S-8211DAB, S-8211DAE, S-8211DAG, S-8211DAH, S-8211DAI, S-8211DAJ, S-8211DAK, S-8211DAL, S-8211DAM Table Item DELAY TIME 25°C) Overcharge detection delay time Overdischarge detection delay time Discharge overcurrent detection delay time Load short-circuiting detection delay time DELAY TIME +85°C) Overcharge detection delay time Overdischarge detection delay time Discharge overcurrent detection delay time Load short-circuiting detection delay time tDIOV tSHORT tDIOV tSHORT 0.96 Symbol Condition Min. Typ. Max. Test Test Unit CondiCircuit tion
Since products screened high temperature, specification this temperature range guaranteed design, tested production.
S-8211DAF Table Item DELAY TIME 25°C) Overcharge detection delay time Overdischarge detection delay time Discharge overcurrent detection delay time Load short-circuiting detection delay time DELAY TIME +85°C) Overcharge detection delay time Overdischarge detection delay time Discharge overcurrent detection delay time Load short-circuiting detection delay time tDIOV tSHORT tDIOV tSHORT 0.96 Symbol Condition Min. Typ. Max. Test Test Unit CondiCircuit tion
Since products screened high temperature, specification this temperature range guaranteed design, tested production.
Seiko Instruments Inc.
Rev.4.5_00 Test Circuits
BATTERY PROTECTION 1-CELL PACK S-8211D Series
Caution Unless otherwise specified, output voltage levels (VCO) (VDO) judged threshold voltage (1.0 N-channel FET. Judge level with respect level with respect VSS. Overcharge Detection Voltage, Overcharge Release Voltage (Test Condition Test Circuit Overcharge detection voltage (VCU) defined voltage between which goes from when voltage gradually increased from starting condition Overcharge release voltage (VCL) defined voltage between which goes from when voltage then gradually decreased. Overcharge hysteresis voltage (VHC) defined difference between overcharge detection voltage (VCU) overcharge release voltage (VCL). Overdischarge Detection Voltage, Overdischarge Release Voltage (Test Condition Test Circuit Overdischarge detection voltage (VDL) defined voltage between which goes from when voltage gradually decreased from starting condition Overdischarge release voltage (VDU) defined voltage between which goes from when voltage then gradually increased. Overdischarge hysteresis voltage (VHD) defined difference between overdischarge release voltage (VDU) overdischarge detection voltage (VDL). Discharge Overcurrent Detection Voltage (Test Condition Test Circuit Discharge overcurrent detection voltage (VDIOV) defined voltage between whose delay time changing from lies between minimum maximum value discharge overcurrent delay time when voltage increased rapidly (within from starting condition Load Short-circuiting Detection Voltage (Test Condition Test Circuit Load short-circuiting detection voltage (VSHORT) defined voltage between whose delay time changing from lies between minimum maximum value load short-circuiting delay time when voltage increased rapidly (within from starting condition Operating Current Consumption (Test Condition Test Circuit operating current consumption (IOPE) current that flows through (IDD) under conditions (normal status). Charger detection voltage detection voltage irregular charging current) (Test Condition Test Circuit charger detection voltage (VCHA) voltage between pin; when gradually increasing VDL+(VHD/2), after that, decreasing gradually from that goes "H". Measurement charger detection voltage available product with overdischarge hysteresis only. detection voltage irregular charging current voltage between pin; when gradually decreasing goes "L". value detection voltage irregular charging current equal charger detection voltage (VCHA).
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8211D Series
Power-down Current Consumption, Overdischarge Current Consumption (Test Condition Test Circuit Shutdown function product power-down current consumption (IPDN) current that flows through (IDD) under conditions (overdischarge status). Shutdown function product overdischarge current consumption (IOPED) current that flows through (IDD) under conditions (overdischarge status). Resistance between (Test Condition Test Circuit resistance between (RVMD) resistance between under conditions Resistance between (Test Condition Test Circuit resistance between (RVMS) resistance between under conditions (10) Resistance (Test Condition Test Circuit resistance (RCOH) resistance under conditions (11) Resistance (Test Condition Test Circuit resistance (RCOL) resistance under conditions (12) Resistance (Test Condition Test Circuit resistance (RDOH) resistance under conditions (13) Resistance (Test Condition Test Circuit resistance (RDOL) resistance under conditions (14) Overcharge Detection Delay Time (Test Condition Test Circuit overcharge detection delay time (tCU) time needed change from just after voltage momentarily increases (within from overcharge detection voltage (VCU) -0.2 overcharge detection voltage (VCU) +0.2 under conditions (15) Overdischarge Detection Delay Time (Test Condition Test Circuit overdischarge detection delay time (tDL) time needed change from just after voltage momentarily decreases (within from overcharge detection voltage (VDL) +0.2 overcharge detection voltage (VDL) -0.2 under condition
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8211D Series
(16) Discharge Overcurrent Detection Delay Time (Test Condition Test Circuit Discharge overcurrent detection delay time (tDIOV) time needed after voltage momentarily increases (within from 0.35 under conditions (17) Load Short-circuiting Detection Delay Time (Test Condition Test Circuit Load short-circuiting detection delay time (tSHORT) time needed after voltage momentarily increases (within from under conditions (18) Battery Charge Starting Charger Voltage (Products with Battery Charging Function "Available") (Test Condition Test Circuit charge starting charger voltage (V0CHA) defined voltage between which goes (VVM +0.1 higher) when voltage gradually decreased from starting condition (19) Battery Charge Inhibition Battery Voltage (Products with Battery Charging Function "Unavailable") (Test Condition Test Circuit charge inhibition charger voltage (V0INH) defined voltage between which goes (VVM +0.1 higher) when voltage gradually increased from starting condition
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8211D Series
S-8211D Series
S-8211D Series
Figure Test Circuit
Figure Test Circuit
S-8211D Series
S-8211D Series
Figure Test Circuit
Figure Test Circuit
S-8211D Series
Oscilloscope
Oscilloscope
Figure Test Circuit
Seiko Instruments Inc.
Rev.4.5_00 Operation
BATTERY PROTECTION 1-CELL PACK S-8211D Series
Remark Refer "Battery Protection Connection Example".
Normal Status
This monitors voltage battery connected between voltage difference between control charging discharging. When battery voltage range from overdischarge detection voltage (VDL) overcharge detection voltage (VCU), voltage more than discharge overcurrent detection voltage (VDIOV), turns both charging discharging control FETs This condition called normal status, this condition charging discharging carried freely. resistance (RVMD) between pin, resistance (RVMS) between connected normal status. Caution When battery connected first time, discharging enabled. this case, short connect charger restore normal status.
Overcharge Status
When battery voltage becomes higher than overcharge detection voltage (VCU) during charging normal status detection continues overcharge detection delay time (tCU) longer, S-8211D Series turns charging control stop charging. This condition called overcharge status. resistance (RVMD) between pin, resistance (RVMS) between connected overcharge status. overcharge status released following cases case that voltage higher than equal charger detection voltage (VCHA), lower than discharge overcurrent detection voltage (VDIOV), S-8211D Series releases overcharge status when battery voltage falls below overcharge release voltage (VCL). case that voltage higher than equal discharge overcurrent detection voltage (VDIOV), S-8211D Series releases overcharge status when battery voltage falls below overcharge detection voltage (VCU). When discharge started connecting load after overcharge detection, voltage rises more than voltage voltage parasitic diode. This because discharge current flows through parasitic diode charging control FET. this voltage higher than equal discharge overcurrent detection voltage (VDIOV), S-8211D Series releases overcharge status when battery voltage lower than equal overcharge detection voltage (VCU). Cautions battery charged voltage higher than overcharge detection voltage (VCU) battery voltage does fall below overcharge detection voltage (VCU) even when heavy load connected, discharge overcurrent detection load short-circuiting detection function until battery voltage falls below overcharge detection voltage (VCU). Since actual battery internal impedance tens battery voltage drops immediately after heavy load that causes overcurrent connected, discharge overcurrent detection load shortcircuiting detection function. When charger connected after overcharge detection, overcharge status released even battery voltage below overcharge release voltage (VCL). overcharge status released when voltage goes over charger detection voltage (VCHA) removing charger.
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8211D Series
Overdischarge Status
With shutdown function When battery voltage falls below overdischarge detection voltage (VDL) during discharging normal status detection continues overdischarge detection delay time (tDL) longer, S-8211D Series turns discharging control stop discharging. This condition called overdischarge status. Under overdischarge status, voltage pulled resistor between (RVMD). When voltage difference between then (Typ.) lower, current consumption reduced power-down current consumption (IPDN). This condition called power-down status. resistance (RVMS) between connected power-down status overdischarge status. power-down status released when charger connected voltage difference between becomes (typ.) higher. When battery overdischarge status connected charger provided that voltage lower than charger detection voltage (VCHA), S-8211D Series releases overdischarge status turns discharging when battery voltage reaches overdischarge detection voltage (VDL) higher. When battery overdischarge status connected charger provided that voltage lower than charger detection voltage (VCHA), S-8211D Series releases overdischarge status when battery voltage reaches overdischarge release voltage (VDU) higher. Without shutdown function When battery voltage falls below overdischarge detection voltage (VDL) during discharging normal status detection continues overdischarge detection delay time (tDL) longer, S-8211D Series turns discharging control stop discharging. This condition called overdischarge status. Under overdischarge status, voltage pulled resistor between (RVMD). resistance (RVMS) between connected overdischarge status. When battery overdischarge status connected charger provided that voltage lower than charger detection voltage (VCHA), S-8211D Series releases overdischarge status turns discharging when battery voltage reaches overdischarge detection voltage (VDL) higher. When battery overdischarge status connected charger provided that voltage lower than charger detection voltage (VCHA), S-8211D Series releases overdischarge status when battery voltage reaches overdischarge release voltage (VDU) higher.
Discharge Overcurrent Status (Discharge Overcurrent, Load Short-circuiting)
When battery normal status status where voltage equal higher than discharge overcurrent detection voltage because discharge current higher than specified value status lasts discharge overcurrent detection delay time, discharge control turned discharging stopped. This status called discharge overcurrent status. discharge overcurrent status, shorted resistor between (RVMS) However, voltage potential load long load connected. When load disconnected, returns potential. This detects status when impedance between (Refer Figure increases equal impedance that enables automatic restoration voltage returns discharge overcurrent detection voltage (VDIOV) lower, discharge overcurrent status restored normal status. Even connected impedance smaller than automatic restoration level, S-8211D Series will restored normal status from discharge overcurrent detection status when voltage becomes discharge overcurrent detection voltage (VDIOV) lower connecting charger. resistance (RVMD) between connected discharge overcurrent detection status.
Seiko Instruments Inc.
Detection irregular charging current
BATTERY PROTECTION 1-CELL PACK S-8211D Series
During charging battery which normal status, voltage becomes lower than charger detection voltage (VCHA) this status held longer than overcharge detection delay time (tCU), S-8211D turns charge-control stop charging. This detection irregular charging current. This function works case that voltage "H", voltage becomes lower than charger detection voltage (VCHA). Thus irregular charger current flows battery overdischarge status, S-8211D turns charge-control stop charging; voltage goes that battery voltage becomes higher than overdischarge detection voltage, after overcharge detection delay time (tcu). status irregular charging current detection released lower potential difference between than charger detection voltage (VCHA).
Battery Charging Function "Available"
This function used recharge connected battery whose voltage self-discharge. When battery charge starting charger voltage (V0CHA) higher voltage applied between pins connecting charger, charging control gate fixed voltage. When voltage between gate source charging control becomes equal higher than turnon voltage charger voltage, charging control turned start charging. this time, discharging control charging current flows through internal parasitic diode discharging control FET. When battery voltage becomes equal higher than overdischarge release voltage (VDU), S8211D Series enters normal status. Caution Some battery providers recommend charging completely self-discharged battery. Please battery provider determine whether enable inhibit battery charging function.
Battery Charging Function "Unavailable"
This function inhibits recharging when battery that internally short-circuited battery) connected. When battery voltage battery charge inhibition battery voltage (V0INH) lower, charging control gate fixed voltage inhibit charging. When battery voltage battery charge inhibition battery voltage (V0INH) higher, charging performed. Caution Some battery providers recommend charging completely self-discharged battery. Please battery provider determine whether enable inhibit battery charging function.
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8211D Series
Delay Circuit
detection delay times determined dividing clock approximately counter.
Remark1. discharge overcurrent detection delay time (tDIOV) load short-circuiting detection delay time (tSHORT) start when discharge overcurrent detection voltage (VDIOV) detected. When load shortcircuiting detection voltage (VSHORT) detected over load short-circuiting detection delay time (tSHORT) after detection discharge overcurrent detection voltage (VDIOV), S-8211D turns discharging control within tSHORT from time detecting VSHORT.
Load short-circuiting detection delay time (tSHORT) VSHORT VDIOV Time tSHORT Time
Figure With shutdown function When overcurrent detected overcurrent continues longer than overdischarge detection delay time (tDL) without load being released, status changes power-down status point where battery voltage falls below overdischarge detection voltage (VDL). When battery voltage falls below overdischarge detection voltage (VDL) overcurrent, S8211D Series turns discharging control overcurrent detection. this case, recovery battery voltage slow that battery voltage after overdischarge detection delay time still lower than overdischarge detection voltage, S-8211D Series shifts power-down status. Without shutdown function When overcurrent detected overcurrent continues longer than overdischarge detection delay time (tDL) without load being released, status changes overdischarge status point where battery voltage falls below overdischarge detection voltage (VDL). When battery voltage falls below overdischarge detection voltage (VDL) overcurrent, S8211D Series turns discharging control overcurrent detection. this case, recovery battery voltage slow that battery voltage after overdischarge detection delay time still lower than overdischarge detection voltage, S-8211D Series shifts overdischarge status.
Seiko Instruments Inc.
Rev.4.5_00 Timing Chart
BATTERY PROTECTION 1-CELL PACK S-8211D Series
Overcharge Detection, Overdischarge Detection
(VCU VHC) Battery voltage (VDL VHD)
voltage
voltage VEB-
voltage VDIOV VEB- Charger connection Load connection Overcharge detection delay time (tCU) Mode*1 Overdischarge detection delay time (tDL)
Normal mode Overcharge mode Overdischarge mode Remark charger assumed charge with constant current. Figure
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8211D Series
Discharge Overcurrent Detection
(VCU VHC) Battery voltage (VDL VHD)
voltage
voltage
voltage VSHORT VDIOV Load connection Discharge overcurrent detection delay time (tDIOV)
Load short-circuiting detection delay time (tSHORT)
Mode
Normal mode Discharge overcurrent mode Remark charger assumed charge with constant current. Figure
Seiko Instruments Inc.
Charger Detection (VCU VHC) Battery voltage
(VDL VHD)
BATTERY PROTECTION 1-CELL PACK S-8211D Series
voltage
voltage
voltage
VCHA
Charger connection Load connection Overdischarge detection delay time (tDL)
case voltage VCHA Overdischarge released overdischarge detection voltage
Mode
Normal mode Overdischarge mode Remark charger assumed charge with constant current. Figure
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8211D Series
Detection irregular charging current
(VCU Battery voltage (VDL
voltage
voltage
voltage VCHA Charger connection Load connection Overdischarge detection delay time (tDL) Mode
Abnormal charging current detection delay time Overcharge detection delay time (tCU))
Normal mode Overdischarge mode Overcharge mode Remark charger assumed charge with constant current. Figure
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8211D Series
Battery Protection Connection Example
Battery S-8211D Series
FET1
FET2
Figure Table Constants External Components Symbol FET1 Part N-channel Purpose Discharge control Typ. Min. Max. Remark Threshold voltage Overdischarge detection voltage Gate source withstanding voltage Charger voltage Threshold voltage Overdischarge detection voltage Gate source withstanding voltage Charger voltage Resistance should small possible avoid lowering overcharge detection accuracy current consumption. Connect capacitor 0.022 higher between pin. Select large resistance possible prevent current when charger connected reverse.
FET2
N-channel
Charge control
Resistor Capacitor Resistor
protection, power fluctuation power fluctuation Protection reverse connection charger
0.022
threshold voltage low, charging current. with threshold voltage equal higher than overdischarge detection voltage used, discharging stopped before overdischarge detected. withstanding voltage between gate source lower than charger voltage, destroyed. high resistance, voltage between exceed absolute maximum rating when charger connected reverse since current flows from charger Insert resistor higher protection. capacitor less than 0.022 connected oscillate when load short-circuiting detected. sure connect capacitor 0.022 higher resistance higher than charging current when high-voltage charger connected. Caution above constants changed without notice. been confirmed whether operation normal circuits other than above example connection. addition, example connection shown above constant guarantee proper operation. Perform through evaluation using actual application constant.
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8211D Series Precautions
application conditions input voltage, output voltage, load current should exceed package power dissipation. apply electrostatic discharge this that exceeds performance ratings built-in electrostatic protection circuit. claims responsibility disputes arising connection with infringement products including this patents owned third party.
Seiko Instruments Inc.
Rev.4.5_00 Characteristics (Typical Data)
Current Consumption
IOPE
BATTERY PROTECTION 1-CELL PACK S-8211D Series
IPDN
IOPE [µA]
IPDN [µA]
[°C]
0.16 0.14 0.12 0.10 0.08 0.06 0.04 0.02
[°C]
7585
IOPE
IOPE [µA]
Overcharge Detection Release Voltage, Overdischarge Detection Release Voltage, Overcurrent Detection Voltage, Delay Time
4.350 4.345 4.340 4.335 4.330 4.325 4.320 4.315 4.310 4.305 4.300
[°C]
4.125 4.115 4.105 4.095 4.085 4.075 4.065 4.055 4.045 4.035 4.025
[°C]
2.95 2.94 2.93 2.92 2.91 2.90 2.89 2.88 2.87 2.86 2.85
[°C]
2.60 2.58 2.56 2.54 2.52 2.50 2.48 2.46 2.44 2.42 2.40
[°C]
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8211D Series
1.50 1.45 1.40 1.35 1.30 1.25 1.20 1.15 1.10 1.05 1.00
[°C]
7585
[°C]
7585
2.85 2.75 2.65 2.55 2.45 2.35 2.25 2.15 2.05 1.95 1.85
[°C]
7585
[ms]
[ms]
[°C]
7585
VDIOV
0.175 0.170 0.165 0.160 0.155 0.150 0.145 0.140 0.135 0.130 0.125
(10) tDIOV
[°C]
VDIOV
tDIOV [ms]
(11) tDIOV
tDIOV [ms]
[°C]
Seiko Instruments Inc.
(12) VSHORT
BATTERY PROTECTION 1-CELL PACK S-8211D Series
(13) tSHORT
0.75 0.70 0.65 0.60 0.55 0.50 0.45 0.40 0.35 0.30 0.25
[°C]
7585
0.65 0.63 0.61 0.59 0.57 0.55 0.53 0.51 0.49 0.47 0.45
tSHORT [ms]
VSHORT
(14) tSHORT
tSHORT [ms]
[°C]
7585
ICOH
ICOL
-0.1 ICOH [mA] -0.2 -0.3 -0.4 -0.5
IDOH
ICOL [mA]
IDOH [mA]
-0.15 -0.20 -0.25 -0.30
IDOL [mA]
-0.05 -0.10
IDOL
0.20 0.15 0.10
0.05
Seiko Instruments Inc.
BATTERY PROTECTION 1-CELL PACK S-8211D Series Marking Specifications
SOT-23-5
SOT-23-5 view
(3):
Product Code (refer Product Name Product Code) number
Product Name Product Code Product Name Product Code
S-8211DAB-M5T1G S-8211DAE-M5T1G S-8211DAH-M5T1G S-8211DAI-M5T1G S-8211DAJ-M5T1G S-8211DAK-M5T1G S-8211DAL-M5T1G S-8211DAM-M5T1G Remark Please contact sales office products other than those specified above.
SNT-6A
SNT-6A view
(3): (6):
Product Code (refer Product Name Product Code) number
Product Name Product Code Product Code S-8211DAB-I6T1G S-8211DAE-I6T1G S-8211DAF-I6T1G S-8211DAG-I6T1G Remark Please contact sales office products other than those specified above. Product Name
Seiko Instruments Inc.
2.9±0.2 1.9±0.2
0.16 -0.06
+0.1
0.95±0.1 0.4±0.1
MP005-A-P-SD-1.2
TITLE SCALE UNIT
SOT235-A-PKG Dimensions MP005-A-P-SD-1.2
Seiko Instruments Inc.
4.0±0.1(10 pitches:40.0±0.2)
+0.1
2.0±0.05
0.25±0.1
+0.2
4.0±0.1 1.4±0.2
3.2±0.2
Feed direction
MP005-A-C-SD-2.1
TITLE SCALE UNIT
SOT235-A-Carrier Tape MP005-A-C-SD-2.1
Seiko Instruments Inc.
12.5max.
Enlarged drawing central part
9.0±0.3
(60°)
(60°)
MP005-A-R-SD-1.1
TITLE SCALE UNIT
SOT235-A-Reel MP005-A-R-SD-1.1
QTY. 3,000
Seiko Instruments Inc.
1.57±0.03
+0.05 0.08 -0.02 0.48±0.02
0.2±0.05
PG006-A-P-SD-2.0
TITLE SCALE UNIT
SNT-6A-A-PKG Dimensions PG006-A-P-SD-2.0
Seiko Instruments Inc.
+0.1
2.0±0.05
4.0±0.1
0.25±0.05
1.85±0.05
+0.1
4.0±0.1
0.65±0.05
Feed direction
PG006-A-C-SD-1.0
TITLE SCALE UNIT
SNT-6A-A-Carrier Tape PG006-A-C-SD-1.0
Seiko Instruments Inc.
12.5max.
Enlarged drawing central part
9.0±0.3
(60°)
(60°)
PG006-A-R-SD-1.0
TITLE SCALE UNIT
SNT-6A-A-Reel PG006-A-R-SD-1.0
QTY. 5,000
Seiko Instruments Inc.
0.52
1.36
0.52
Caution Making wire pattern under package possible. However, note that package upraised thickness made silk screen printing solder resist pattern because this package does have standoff.
PG006-A-L-SD-3.0
TITLE SCALE UNIT
SNT-6A-A-Land Recommendation
PG006-A-L-SD-3.0
Seiko Instruments Inc.
information described herein subject change without notice. Seiko Instruments Inc. responsible problems caused circuits diagrams described herein whose related industrial properties, patents, other rights belong third parties. application circuit examples explain typical applications products, guarantee success specific mass-production design. When products described herein regulated products subject Wassenaar Arrangement other agreements, they exported without authorization from appropriate governmental authority. information described herein other purposes and/or reproduction copying without express permission Seiko Instruments Inc. strictly prohibited. products described herein cannot used part device equipment affecting human body, such exercise equipment, medical equipment, security systems, equipment, apparatus installed airplanes other vehicles, without prior written permission Seiko Instruments Inc. Although Seiko Instruments Inc. exerts greatest possible effort ensure high quality reliability, failure malfunction semiconductor products occur. user these products should therefore give thorough consideration safety design, including redundancy, fire-prevention measures, malfunction prevention, prevent accidents, fires, community damage that ensue.

S-8211D Series S-8211D Series protection single-cell lithium-ion

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